Blogger makes some interesting points. You can learn from any book, even if you're only learning what not to do. But I think it makes sense to keep most of your hate-reading to acclaimed authors. Even if that means reading something iffy like Twilight or genuinely cringeworthy like Fifty Shades. You know they've developed a following, and figuring out why it's gotten popular can help you figure out how to communicate better with your own audience.
On the other hand, if you find yourself disliking a no-name author, there may not be much there to learn. Or if you find yourself disliking a famous author, and it's pretty easy to see why (like the blogger's relationship to Margaret Atwood's sometimes disturbing subject matter).
Note: Tangential hate-rant on unnamed book follows. You have been warned.
So I tried out a book I heard about via BookGorilla. The prose was a bit stilted, which grated on me. But the worldbuilding, omigod what a train wreck. Author, did you give any thought to the logistics of having the whole city show up for their Standard YA Totalitarian Monitoring Procedure on the same day? Did you give any thought to how your society got from "disaster that wiped out 95% of the population" to "gleaming, modern city laid out in geometric perfection" in a few decades? Every time I started thinking about how world feature X would work, I came to the conclusion that it probably wouldn't.
Then came the thing that sent the book wherever bits go when they're deleted. Okay, your protagonist has been more or less kidnapped and enslaved so she can be forced to undergo which has a chance of saving the world, albeit in a handwavey fashion that kinda leaves you questioning Evil YA Totalitarian Government's competence. But the way the author has set things up so far, the process could involve a high level of squick that the author is rightly hesitant to inflict upon the protagonist. I was glad she gave herself an out.
But the "out" she gives the protagonist is problematic. The fact that the option exists doesn't just make it unnecessary to in. It makes nonsense of Evil YA Totalitarian Government's reasons for kidnapping her in the first place.
I don't know what I'm supposed to learn from this book. "Don't set up your world in nonsensical ways?" "Don't introduce story elements that suggest the whole story is unnecessary and your antagonists are doing evil when there's a far more effective and far less intrusive to accomplish their goals?" While specific advice saying, "Hey, your world doesn't make sense for this reason" is valuable, the general maxim "Write a world that makes sense" doesn't feel helpful. We're blind to our own worldbuilding problems, because of course we've written a world that seems to make sense to us.
Maybe I'm wrong. Maybe watching a book utterly fail at some facet of storytelling is the best way to gain insight on how to do it better. But that's not a thought I'm comfortable with, because I worked very hard on this rant, and the idea totally undermines my point. So please forget I said anything.
Where was I? Oh, right. Before you set a book aside, try to figure out what you can learn from it. But sometimes all you can learn is, "there's such a thing as a bad book."
Totally unrelated note: No web designer should ever use a hairline font like Raleway as their text font. Cuts reading speed in half. It's fun and modern for a headline font, but for text you need something a bit less slender.